<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no">
    <!-- <meta name="viewport" content="width=1200"> -->
    <title>bcrt</title>
  </head>
  <body>
    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
  <script>
    window.onload = function() {
      // 阻止双击放大
      var lastTouchEnd = 0;
      document.addEventListener('touchstart', function(event) {
          if (event.touches.length > 1) {
            console.log('123')
            event.preventDefault();
          }
      });
      document.addEventListener('touchend', function(event) {
          var now = (new Date()).getTime();
          if (now - lastTouchEnd <= 300) {
              event.preventDefault();
          }
          lastTouchEnd = now;
      }, false);

      // 阻止双指放大
      document.addEventListener('gesturestart', function(event) {
          event.preventDefault();
      });
    }
  </script>
</html>
